CN102175453A - Bearing on-line monitoring method of casting crane reducer - Google Patents

Abstract

The invention discloses a bearing on-line monitoring method of a casting crane reducer, relating to a hoisting mechanism reducer of the casting crane. The method comprises the following steps of: 1, vertically installing a shock pulse sensor directly above each bearing box of the reducer respectively; 2, radially installing a vibration sensor laterally above each bearing box of the reducer respectively; 3, connecting the shock pulse sensors and the vibration sensors with a PLC (programmable logic controller) database through dedicated cables; 4, transmitting data on a visible screen in the operator cab through a wireless transmission system, wherein the state of a bearing is indicated by green, yellow and red, the green indicates that the bearing is in good operation, the yellow indicates that the lubrication for the bearing is not good, and the red indicates that the bearing is in failure; 5, starting a motor to operate the reducer, wherein, according to the indicating states of green, yellow and red, oil should be immediately filled to the bearing when yellow is indicated, and the operation should be stopped immediately so as to exchange the bearing once red is indicated.

Description

Ladle carne speed reduction unit bearing on-line monitoring method

Technical field

The present invention relates to the ladle carne lifting mechanism, particularly the ladle carne Hoist Mechanism.

Background technology

Ladle carne is the key equipment of steelworks, and it mainly bears the handling of steel ladle, ladle.Main hoisting mechanism speed reduction unit (abbreviation speed reduction unit) is the core of ladle carne, and direct motor drive speed reduction unit high speed shaft 6 drives roll devices by certain speed ratio by the slow-speed shaft 7 of speed reduction unit, finishes hoisting and descending of steel ladle or ladle.Therefore, the operation quality of ladle carne speed reduction unit directly influences output, benefit and the safety of steelworks.

At present, the common problem of ladle carne speed reduction unit is that bearing 5 faults are many.For preventing the speed reduction unit leakage of oil, on speed reduction unit upper box 1, lower box 2 flask joints 3, smear fluid sealant, and connect with many bolts 4; Simultaneously, because ladle carne 24 continuous throughout the twenty-four hour24s, speed reduction unit bearing 5 very easily breaks down.After bearing breaks down, change bearing and extremely bother, approximately need to stop production 5～6 hours.If by average 35 minutes refining one heat steels, can refine 10 stove steel less, therefore, it is very big often to change the stopping production loss that bearing causes.

Summary of the invention

Purpose of the present invention is intended to overcome the shortcoming of prior art, and a kind of ladle carne speed reduction unit bearing on-line monitoring method is provided, and it is many to solve existing hoist reduction gear bearing fault, often stops production and changes bearing, influences the problem of STEELMAKING PRODUCTION.

The present invention is achieved through the following technical solutions:

A kind of ladle carne speed reduction unit bearing on-line monitoring method, it is characterized in that: the step of described on-line monitoring method is as follows:

1. punching vertically downward directly over the bearing housing of each bearing of speed reduction unit is installed in a shock pulse sensor in the hole;

2. above the bearing housing side of each bearing of speed reduction unit, radially punch, a vibration transducer is installed in the hole to the center of circle;

3. each shock pulse sensor and vibration transducer are connected to the plc data storehouse with private cable;

But 4. be transmitted on the screen in the cab by wireless transmitting system, by international standard " green, yellow, red " indication bearing state: green expression bearing operational excellence, yellow expression bearing lubrication is bad, redly represents that bearing breaks down;

5. start motor, make retarder operation,, when being designated as yellow, should in time give the bearing oiling according to " green, yellow, red " indicating status; In case when being designated as redness, needing stops immediately changes bearing.

The present invention compared with prior art has the following advantages and beneficial effect:

Owing on ladle carne speed reduction unit axle box, be provided with shock pulse sensor and vibration transducer, the present invention not only can carry the market condition by the on-line monitoring reducer shaft, and can remind the maintainer in time to give bearing oily, avoid bearing to break down, saved the time of changing the speed reduction unit bearing greatly, reduce production cost, thereby increased output.The present invention also has good manufacturability, assembling advantage simple, with low cost.

Description of drawings

Fig. 1 is a kind of structural representation (front view) of ladle carne speed reduction unit;

Fig. 2 is the A-A sectional view of Fig. 1.

The present invention is further illustrated by preferred embodiment below in conjunction with accompanying drawing.

Embodiment

As shown in Figure 1, 2, a kind of ladle carne speed reduction unit bearing on-line monitoring method step is as follows:

1, punching vertically downward directly over the bearing housing 5-1 of each bearing 5 of speed reduction unit is installed in a shock pulse sensor 8 in the hole;

2, above the bearing housing 5-1 of each bearing 5 of speed reduction unit side, radially punch, a vibration transducer 9 is installed in the hole to the center of circle;

3, each shock pulse sensor 8 and vibration transducer 9 usefulness private cables are connected to the plc data storehouse;

But 4, be transmitted on the screen in the cab by wireless transmitting system, by international standard " green, yellow, red " indication bearing state: green expression bearing 5 operational excellences, yellow expression bearing 5 is lubricated bad, redly represents that bearing 5 breaks down;

5, start motor, make retarder operation,, when being designated as yellow, should in time give the bearing oiling according to " green, yellow, red " indicating status; In case when being designated as redness, needing stops immediately changes bearing.

Claims (1)

1. a ladle carne speed reduction unit bearing on-line monitoring method step is as follows:

1. punching vertically downward directly over the bearing housing (5-1) of each bearing of speed reduction unit (5) is installed in a shock pulse sensor (8) in the hole;

2. radially punch in bearing housing (5-1) the side top of each bearing of speed reduction unit (5), a vibration transducer (9) is installed in the hole to the center of circle;

3. each shock pulse sensor (8) and vibration transducer (9) are connected to the plc data storehouse with private cable;

But 4. be transmitted on the screen in the cab by wireless transmitting system, by international standard " green, yellow, red " indication bearing state: green expression bearing (5) operational excellence, yellow expression bearing (5) is lubricated bad, and the red bearing (5) of representing breaks down;

5. start motor, make retarder operation,, when being designated as yellow, should in time give the bearing oiling according to " green, yellow, red " indicating status; In case when being designated as redness, needing stops immediately changes bearing.